IgnoFlash is a patch that modifies the Adobe Flash Player plugins for Netscape and ActiveX to keep them in fullscreen when focus is lost. It makes it possible to operate another application when watching Flash video in fullscreen on a multi-monitor setup. You can still close fullscreen with the usual methods (Escape key, UI elements). This patch has been tested with Flash Player versions 10.0 and 10.1 in Opera, Firefox, Chrome, and Internet Explorer. It might also work for previous and future versions.